Locking-cap for tire-valves and the like.



M. c. SGHWEINERT & H. P. KRAFT. LOCKING CAP FOR TIRE VALVES AND THELIKE.

APPLIGATION IILEDJAILZZ. 1907.

Patented May 28, 1912.

"FIG.

FIG. 2.

FIG. 8.

.INVENTORsQ JIM M 1) Attor js I g/ i. STATES PATENT osmosnnxmimm CHARLESscnwnmnnr, or wns'r nonoxnn, NE JERSEY, AND HENRY r. KRAFT, or new YORK,N. Y'.' I

' tocxme-cn'r FOR nim-vsnvns AND THE LIKE.

CHARLES 'SCHWEINER'I, residing in West is a specification.

- are employed for retainingor'locking the i ,Fig. 4 is a plan ofnone nspring the application 0 Hoboken, 'in the county of Hudson. and State ofNew Jersey, and I'IENBY P. KRAF1, residing-in the borough of Brooklyn,in the of 1 Kings, city and State of New York, both'citizens of theUnited States, have jointly invented certain new and useful Improvementsin Locking-Cap for Tire- Valves and the Like, of which the followingThis invention 'relatcsato caps which are adapted tobe screwed uponautomobile tire valves, stay bolts or the'llke, in which means cap inplace. In someof itslfeatures, however, nuts and similar devices;v 1

In the --drawings illiistrating our inven: tion, Figure 1. isaview ofour invention applied to'an automobile tire valve, the valve eing shownin elevation and the cap in section; Fig. 2 is aviewillustrating-various arts of our improved cap before assem- B such partswiththeexception of the being shown 'in [vertical section; bottom viewof thecap proper; of the corrugated disks; Fig. 5 is a plan ofthe'washerwhich is attached] to: the lower part of the cap proper; Fig. 6 isanelevation of the complete cap, and is, a view illustrating 'ourjimprovedcap to a the tire being Fig. 3 is a 'stay bolt for pneumatic tires,

shown in 'cros's-section. Fig. Sis 'asectron of a modlficatlom' taken ona lme 1n-- dicated at 8-8. on thewasher, Fig. 9. Fig.

9 is a pla'nof the washer of Fig. 8. Referring to 1 to 6 of the drawingslet A indicate- 'neumatic tire valve; of common construction -wh1ch 1sconnected with the tirefll andg extends through the rim G.

Dindicates the cap as awhole which is, "provided with internalscrew-threads adapt ed to engage the outerwall of the valve to,

" hold the latter and to protect it against inward movement 0m dust,fmury, etc.

our invention is. applicable to lock In the construction shown the capc'omprises a nut E having fixed to its upper end a sheet metal cap Fwhich is provided" with an outwardly extending flange at. its lowerflange upon. the nut. The nut E has swlyeled to its lower end a washerG, whlch is designed to press against the rim or by engagement with aflat wall H formed upon the valve. In the latter case one or morestraight faces I as shown in Fig. 5,. According to our invention the nutJ, (Fig. 2) and the washer is formed with an outwardly extending flangeK over w ich the flange J is bent when the parts are assembled. Thisconstruction provides .an

swiveling the parts together and allows the requisite amount of,telescoping of the parts. The nut and washer are provided with opsingle0011 of a helix and provided with oppositely' extending projections Madapted to enter a. series of recesses or notches in screwed home itsreverse rotation will be screwing of the cap "proper.

are-at difliculty that the nut E and washer can be formed with thenotches or undulations necessary in this type ofcap. 'An extremely heavy"pressure is required to swage the heavy metal of which these parts "areformed. One of the objects of our pres ent invention is to avoid thisdisadvantage and materially cheapen thecost of construction. To this endwe form the, notches i or depressions upon separate plates N, N whichthe nut and washer.- Preferably the plates N, N are in the form ofcorrugated annular be best mode of end engaged by an inwardly extendingrim 0 and to be held against rotation. either by its; frictional contactwith the' the washer is formed on its interior with -'is bored on itslower side to form a flange.

exceedingly simple and cheap method ofposing recesses which are designedto inclose asprlng L (Fig. 2) in the form of a- :sufliciently resistedto prevent accidental un- -We have found. 1n practice that it is withare afterward fixed within-therecesses of Patented May 28,1912.

the-nut andwasher so that when the cap is disks, which can be stampedout of sheet metal in one operation.

constructing and applying the disks to the parts is that illustrated inFigs. 3, 4,and 5. The walls of the cap and washer surrounding theopposing recesses are provided with a series of notches O, O, the entireseries preferably being made with a single drifting tool in oneoperation. The disk N is formed with a series of projections or points P(Fig. 4) which correspond in number with the notches O, and is somewhatcupped or concaved as shown in Fig.2. In assembling the parts the diskis placed in,the nut or washer with its points within the indentations Oand is pressed downwardly by a suitable tool so that it is flattened'andrigidly engages the nut or washer. Of course it will be understoodthatany other -means of attaching the disks may be employed.

The disk applied to the nut -is, of course,- adapted to rotatetherewith, and its opening is so proportioned that any diameter thereofis greater than the bore of the nut,-

so that it does not non-lrotatively engage the bolt.

In Fig. 7 wehave illustrated our invention as applied to a stay bolt forpneumatic tires. In construction it does not differ materially from thatshown in Fig. 1, the principal difference being that the nut and washerare provided with boresof smaller diameter so as to engage the smallerbolt. The latter may be provided with a flat face such as H (Fig. 1) if,desired.

In Figs. '8 and 9 we have illustrated a modification of our invention.In these figures but one disk N is used, and the spring L is replaced bya short spring L which is fixed at its end to one of the parts. Asshown, the disk is connected to the nut E- in the same manner as in Fig.1, while the spring L is united to' the washer G by a screw. Obviouslythis arrangement may be reversed.

While we have illustrated our invention as applied to a cap for staybolts, valves,.

- etc., it will be understood that it is susceptible of use in otherconnections, such as lock nuts or the like. It will also be understoodthatwe do not wish to be restricted to the constructions shown asthesemay be varied considerably without departing from the invention.

What we claim is 1. A nut having 'a recess, and a sheet metal disk insaid recess, said disk being.

notched or corrugated.

2. The combination of a nut, a part swiveled thereto, said parts havinga recess formed between them and .a notched disk in said recess, andresilient engaging means interposed between said nut and swiveled part.

3.}The combination of a nut, a part swiveled thereto, said parts havinga 'rethereto a washer, said parts being cess formed between them and anotched disk in said recess, said disk being adapted to engage one ofsaid parts, and a spring adapted to be connected with the other of saidparts and to engage said disk.

I 4. The combination of a nut, a washer,

walls of which are formed with a series of notches, and a-corrugateddisk within said recess having projections entering said notches, saiddisk being adapted to rotate with the nut and having an open' ganydiameter of which equals that of the bore of the nut. 6. ,A nut orthe like having swiveled with opposing recesses, a spring within saidrecesses and a corrugated disk between said nut and washer and fixed toone of said parts and adapted to be engaged by said spring.

7. nut having at one end a washer connected thereto and swiveledthereon, said nut and washer having a series of notches, and a springbetween said nut and washer adapted to engage such notches, said nuthaving fixed to its other end a sheet metal cap portion adapted to fitover the protruding end of a bolt or the like.

8. A cap for stay bolts, tire valves or the like adapted to inclosesubstantiall the whole of the projecting portion of suc member, said capbeing screw-threaded on its innerfend to screw upon said member, awasher'swiveled to said cap, said cap and washer being recessed, aspring within' said recess, and corrugated sheet metal disks fixed tosaid cap and washer respectively and adapted to be engaged by saidspring.

9. A nut having a washer swiveled thereto, said nut being recessed onits lower side formed to form a substantially unbroken circular flangeJ, and said washer fitting within said recess and having .an outwardlyextending flange K, said flange J being bent over said flange K toswivel the parts together, the lower face of said washer extendingbeyond the lower face of the nut.

10. The combination of two parts, one

of which is screw threaded, and the other of which is adapted to holdthe first in place, one of said parts having a recess and a notched orcorrugated face, such face being formed upon a separately formed memberconnected to such part within said recess, and a spring engagingsaidcorrugations.

11. The combination of anut and a washer, one of which .has a recess anda notched or corrugated face within said recess, such face being formedupon a corrugated metal disk, and a spring engaging said corrugations.

12. The combination of a nut, a part swiveled thereto, said parts eachhaving a recess, a corrugated disk in each of said recesses, and aspring in said recesses and adapted to engage both said disks.

